Biggest challenge is finding diesel in the remote areas or on the trail should something happen and need to find extra..

Not a problem unless you do a poor job of managing your fuel or are lazy. Assuming the Cummins returns 20mpg, a 20-gallon tank will get you 400 miles. Carry a spare jerry can and that gives you another 100 miles. So you have to be a minimum of 250 miles from a place that sells diesel for this to be a concern. There is nowhere in the lower 48 states where you can do this. Hell, I've driven across the Kalahari and the Great Namib deserts and even there fuel availability wasn't an issue.

Worried about rupturing your fuel tank? Take 2 jerry cans of diesel and invest in armor.

__________________"Americans can always be counted on to do the right thing,
once they have exhausted the alternatives." Winston Churchill